Anterior interventricular branch of left coronary artery
- Anterior interventricular branch of left coronary artery
Name = PAGENAME
Latin = ramus interventricularis anterior arteriae coronariae sinistrae
GraySubject = 142
GrayPage = 547
Caption = Sternocostal surface of heart. (Anterior descending branch labeled at upper right.)
Caption2 = The arch of the aorta, and its branches.
BranchFrom = left coronary artery
BranchTo = septals, diagonals
Supplies = anterolateral myocardium, apex, interventricular septum, 45-55% of the left ventricle (LV)
DorlandsPre = r_02
DorlandsSuf = 12690388
The "LAD", or left anterior descending artery (or anterior interventricular branch of the left coronary artery, or anterior descending branch) is an artery of the heart.
It passes at first behind the pulmonary artery and then comes forward between that vessel and the left auricula to reach the anterior interventricular sulcus, along which it descends to the incisura apicis cordis.
In 78% of cases, it reaches the apex of the heart.
It supplies the anterolateral myocardium, apex, and interventricular septum. The LAD typically supplies 45-55% of the left ventricle (LV).
The LAD gives off two types of branches: "septals" and "diagonals".
* Septals originate from the LAD at 90 degrees to the surface of the heart, perforating and supplying the interventricular septum.
* Diagonals run along the surface of the heart and supply the lateral wall of the left ventricle and the anterolateral papillary muscle.
* - "Heart: The Left Coronary Artery and its Branches"
* - "Anterior view of the heart."
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